* Good roof installation nails without cracking phenomenon
* Closely combined with color steel plate. The section thickness is uniform. The shape of FRP sheet is consistent with that of steel sheet.
* Low light transmittance. No yellowing phenomenon after long-term use.
* The coefficient of thermal expansion is close to the steel plate. The nail does not crack or leak due to cold and hot expansion.
* The light through the glass fiber reinforced plastic sheet is scattered and soft.
* Smooth appearance, no obvious bubbles and cracks.
* UV resistance, chemical corrosion resistance.
* Anti aging, anti crushing.
* Long service life.
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